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Table 1 Demographics and characteristics of included studies

From: Prevalence of sleep disturbance among adolescents with substance use: a systematic review and meta-analysis

 

Number of studies

Number of participants (%)

Mean

SD

Sample size

18

1,24,554

  

Age

18

 

15

3.32

Sex

    

Male

18

62,572 (50.2)

  

Female

18

61,982 (49.8)

  

Geographic location

    

America

6

39,057 (31.4)

  

Europe

6

37,665 (30.2)

  

Asia

5

47,236 (37.9)

  

Oceania

1

596 (0.5)

  

Study design

    

Cross-sectional

16

1,14,270 (91.7)

  

Prospective cohort

2

10,284 (8.3)

  

Study setting

    

School

13

92,145 (74.0)

  

Others a

5

32,409 (26.0)

  

Instrument

    

Self-designed

4

58,261 (46.8)

  

Others b (standardized)

14

66,293 (53.2)

  

Method of assessment

    

Self-report

15

1,00,539 (80.7)

  

Face-to-face interview

3

24,015 (19.3)

  

Substance use

18

55,936 (44.9)

  

Alcohol

15

20,953 (37.5)

  

Smoking

15

25,626 (45.8)

  

Coffee

3

64,66 (11.5)

  

Marijuana

3

2891 (5.2)

  

Sleep disturbance

    

Insomnia

12

9057 (16.2)

  

Hypersomnolence

4

1625 (2.9)

  

SRBD

3

5167 (9.2)

  
  1. a= Social media, community, and clinical setting, b= Adolescent Heath Questionnaire, Health Problems Checklist, Minimal Insomnia Symptom Scale, Youth Self-Report, Epworth Sleepiness Scale, Insomnia Severity Index, Pediatric Daytime Sleepiness Scale, Global Appraisal of Individual Needs-Short Screener, Athens Insomnia Scale, International Classification of Sleep Disorders-Third Edition, Diagnostic and Statistical Manual of Mental Disorders version 5, Global Sleep Assessment Questionnaire, American Academy of Sleep Medicine, Pittsburgh Sleep Quality Index, Stanford Sleep Questionnaire and Assessment of Wakefulness, c= Sleep-Related Breathing Disorders